IntroductionThe C++ language contains some statements and not any built in function. Hence the actual function is written in the language provided any method of performing I/O operation. The header file is a file containing C++ declaration and macro definition to be shared between several source files. In computer science a library is a collection of subprograms used to develop software.
|Note: Header files are used for two purposes:|
- System header files declare the interfaces to parts of the operating system.
- Our own headers files contain declarations for interfaces between the source files of the program.